26. Summary - endangered and threatened species 

 Name of species: Hottonia inflata (Featherf oil) . 



Species legal status and authority: Threatened peripheral 

 in North Carolina (Cooper et al. 1977). 



Niimber of populations on site: Numerous, scattered through 

 transition area between mill pond headwaters and Lassiter Swamp. 



Number of individuals per population: Several hundred in 

 good years. 



Size or maturity of individuals: Usually fairly large and 

 robust when flowering and fruiting from April 1 through June 7. 



Phenology of population: 

 Eg: vegetative % 



flowering % 100% 

 fruiting % 100% 



General vigor of population: Varies highly with water volume, 

 quality and chemistry from year to year. Adversely affected by both 

 flooding and drought. 



Disturbance or threats to population: Disturbed water regime 

 of excessively fast runoff alternating with dry spells affects site 

 quality. Beaver trapping on park boundary eliminates some habitat. 



Habitat characteristics 



Plant community: Nyssa aguatica / Hottonia inflata . 



Topography: Water. 



Soil series: Undetermined. 



Microclimate: Cooler, and with less insolation than natural 



area. 



Drainage basin: Chowan River. 



Other plants and animal species present : Glyceria 

 pallida, Callitriche heterophylla, Sparganium americanum, 

 Ceratophyllum echinatum. Beaver, wood ducks. 



Aerial or detailed maps with populations clearly marked: 



140 



